Spawning times and breeding trials suggest no inbreeding occurs between Porites aff. lutea and P. cf cylindrica
Terraneo, Tullia I., Kuba, Alyson, Berumen, Michael L., Harii, Saki, and Baird, Andrew H. (2025) Spawning times and breeding trials suggest no inbreeding occurs between Porites aff. lutea and P. cf cylindrica. Coral Reefs, 44. pp. 2155-2161.
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Abstract
Molecular approaches have advanced our understanding of reef coral biodiversity. However, in some taxa, they have yet to deliver a robust taxonomy that reflects differences in the ecology and biology of species. For example, Porites cf. cylindrica and P. aff. lutea, which have different morphologies and life histories, are clustered close together in a complex containing several other Porites species when analyzed using both single locus molecular markers and thousands of SNPs from ezRAD data. This suggests the possibility of recent or ongoing speciation and/or hybridization between these species. Here, we used the timing of gamete release and gamete compatibility to test reproductive boundaries between the two. At Orpheus Island (Australia), P. cf. cylindrica and P. aff. lutea spawned on the same night, while at Sesoko Island (Japan), they did not. Furthermore, when spawning occurred during in vitro breeding trials, the eggs did not cleave, suggesting that P. cf. cylindrica and P. aff. lutea are not interbreeding. Breeding trials can help resolve species identities in taxa for which molecular and morphological data provide unclear results.
| Item ID: | 89243 |
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| Item Type: | Article (Research - C1) |
| ISSN: | 1432-0975 |
| Keywords: | Barriers to gene flow, Corals, Species boundaries, Species complexes |
| Copyright Information: | © The Author(s) 2025. This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/. |
| Funders: | Australian Research Council (ARC) |
| Date Deposited: | 17 Jul 2026 03:49 |
| FoR Codes: | 31 BIOLOGICAL SCIENCES > 3103 Ecology > 310305 Marine and estuarine ecology (incl. marine ichthyology) @ 100% |
| SEO Codes: | 18 ENVIRONMENTAL MANAGEMENT > 1805 Marine systems and management > 180504 Marine biodiversity @ 100% |
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